Biological rhythm is a phrase often used interchangeably with circadian rhythm. These rhythms are a series of bodily functions regulated by your internal clock. They control cycles like sleepand ...

If you've ever travelled to a different time zone, you probably felt groggy and tired after your flight. Or you've likely missed that extra hour when the clock jumps forward for Daylight Savings time ...

Blood was collected at intervals during a 24-hour period from 23 healthy male volunteers on diets containing various amounts of protein; the plasma was assayed for 16 amino acids. Among subjects ...